Based on a review of 98 prospective (i.e. prognostic) assessments, however, Veerman et al. [ 37] conclude that quantification is so far relatively rare, and the validity of the methods and results uncertain.
To be noticed is also the development of micro-BCA or Bradford assay as a tool for relative protein quantification in samples but far fewer papers refer to this technique [43].
Cheung et al. (2012) raised a concern about the lack of correlation between genomics-based and proteomics-based quantification of antibodies (that far exceeds the commonly observed limited correlation in traditional proteogenomics studies (Nesvizhskii, 2014 ).
Though attracting, miRNA quantification in liquid samples is far from being trivial.
As with tissue samples, thus far, no optimal quantification method has been found.
The survey facilitated the quantification and correlation of views far beyond what can be reproduced in this paper.
However, the structural diversity of hopanoids, and possible variability in their ionization efficiencies on different instruments, have thus far precluded robust quantification and hindered comparison of results between laboratories.
We chose MR-based fat quantification because it is thus far the only technique that allows direct, radiation-free assessment of intra-abdominal fat depots, and therewith abdominal fat distribution.
To the authors' best knowledge, no direct in-depth comparison has been conducted so far between semi-quantification approaches and machine learning algorithms.
Digital PCR measurements have thus far not demonstrated absolute quantification of mRNA present in a single cell.
